| Message ID | 20231115102954.7102-20-tzimmermann@suse.de |
|---|---|
| State | Superseded |
| Headers | show |
| Series | fbdev: Modularize helpers for struct fb_ops | expand |
Thomas Zimmermann <tzimmermann@suse.de> writes: > Initialize the instance of struct fb_ops with fbdev initializer > macros for framebuffers in virtual address space. Set the read/write, > draw and mmap callbacks to the correct implementation and avoid > implicit defaults. Also select the necessary helpers in Kconfig. > > Fbdev drivers sometimes rely on the callbacks being NULL for a > default I/O-memory-based implementation to be invoked; hence > requiring the I/O helpers to be built in any case. Setting all > callbacks in all drivers explicitly will allow to make the I/O > helpers optional. This benefits systems that do not use these > functions. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > Cc: Michael Ellerman <mpe@ellerman.id.au> > Cc: Nicholas Piggin <npiggin@gmail.com> > Cc: Christophe Leroy <christophe.leroy@csgroup.eu> > Cc: linuxppc-dev@lists.ozlabs.org > --- > drivers/video/fbdev/Kconfig | 5 +---- > drivers/video/fbdev/ps3fb.c | 7 ++----- > 2 files changed, 3 insertions(+), 9 deletions(-) > Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 2445cbca85579..812b3a9a49507 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1715,10 +1715,7 @@ config FB_IBM_GXT4500 config FB_PS3 tristate "PS3 GPU framebuffer driver" depends on FB && PS3_PS3AV - select FB_SYS_FILLRECT - select FB_SYS_COPYAREA - select FB_SYS_IMAGEBLIT - select FB_SYS_FOPS + select FB_SYSMEM_HELPERS help Include support for the virtual frame buffer in the PS3 platform. diff --git a/drivers/video/fbdev/ps3fb.c b/drivers/video/fbdev/ps3fb.c index de81ad3a5d1ed..de8d78bf070a0 100644 --- a/drivers/video/fbdev/ps3fb.c +++ b/drivers/video/fbdev/ps3fb.c @@ -939,15 +939,12 @@ static const struct fb_ops ps3fb_ops = { .owner = THIS_MODULE, .fb_open = ps3fb_open, .fb_release = ps3fb_release, - .fb_read = fb_sys_read, - .fb_write = fb_sys_write, + __FB_DEFAULT_SYSMEM_OPS_RDWR, .fb_check_var = ps3fb_check_var, .fb_set_par = ps3fb_set_par, .fb_setcolreg = ps3fb_setcolreg, .fb_pan_display = ps3fb_pan_display, - .fb_fillrect = sys_fillrect, - .fb_copyarea = sys_copyarea, - .fb_imageblit = sys_imageblit, + __FB_DEFAULT_SYSMEM_OPS_DRAW, .fb_mmap = ps3fb_mmap, .fb_blank = ps3fb_blank, .fb_ioctl = ps3fb_ioctl,
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in virtual address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default I/O-memory-based implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: linuxppc-dev@lists.ozlabs.org --- drivers/video/fbdev/Kconfig | 5 +---- drivers/video/fbdev/ps3fb.c | 7 ++----- 2 files changed, 3 insertions(+), 9 deletions(-)